EP2575116B1

EP2575116B1 - Setting method of field device and setting system of field device

Info

Publication number: EP2575116B1
Application number: EP12184828.7A
Authority: EP
Inventors: Yoshiyuki Jinguu
Original assignee: Yokogawa Electric Corp
Current assignee: Yokogawa Electric Corp
Priority date: 2011-09-30
Filing date: 2012-09-18
Publication date: 2021-11-03
Anticipated expiration: 2032-09-18
Also published as: EP2575116A3; CN103034183A; US8953493B2; CN103034183B; JP5483211B2; EP2575116A2; JP2013077197A; US20130083694A1

Description

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a setting method of a field device that is capable of performing setting for each field device, to which a communication line used in control data communication is connected, through a terminal device.
Priority is claimed on Japanese Patent Application No. 2011-217251, filed September 30, 2011 .

Description of the Related Art

All patents, patent applications, patent publications, scientific articles, and the like, which will hereinafter be cited or identified in the present application, will hereby be incorporated by reference in their entirety in order to describe more fully the state of the art to which the present invention pertains.
When a field device is installed in a plant or when setting for the field device is changed, a setting process for various parameters such as device information and information necessary for communication is performed on the field device via communication.
FIG. 4 is a view illustrating a configuration example of a field control system in accordance with the related art. As shown in FIG. 4, the field control system includes a group of field devices having a field device 1, a multiplexer 2 connected to an upper level of the field device 1, a field controller 3 connected to an upper level of the multiplexer 2, and a manipulation monitoring device 4 and a connection terminal device 5 which are connected to an upper level of the field controller 3.
The manipulation monitoring device 4 performs an operation and monitoring related to field control of the field device 1 by using communication through a communication path that is via the multiplexer 2 and the field controller 3.
The connection terminal device 5 performs an operation for setting device information or information necessary for communication on the field device 1 through a communication path that is via the multiplexer 2 and the field controller 3. The connection terminal device 5 stores a device management database for which data input and data update are necessary corresponding to setting for the field device 1.
Next, an operation procedure when the setting process for the field device 1 is performed will be described. Two methods will be described below as examples of an operation method.

(Method 1)

The connection terminal device 5, which is a host, performs setting for the field device 1 by performing communication with the field device 1 through the communication path via the field controller 3 and the multiplexer 2.
In Method 1, the setting operation is performed by using the connection terminal device 5. Thereby, the connection terminal device 5 performs setting for the field device 1 and data input or data update to the device management database stored in the connection terminal device 5 simultaneously in parallel.
In Method 1, the field control uses the communication path between the field device 1 and the manipulation monitoring device. Thereby, the communication speed when performing setting for the field device 1 may be lowered, depending on the number of field devices, performance of the field controller 3 or the like, and thus the setting process may require a long time.
When setting for the field device 1 is performed, setting is necessary to specify a communication path for access from the connection terminal device 5 to the field device 1. For example, it is necessary to specify connection ports of the field controller 3 and the multiplexer 2 so that the connection terminal device 5 specifies the communication path to connect to the field device 1. As such, when the scale of the field control system is large, a complicated procedure is necessary.

(Method 2)

A portable terminal device 6 is used to perform setting for the field device 1.
In Method 2, while the portable terminal device 6 is directly connected to the field device 1, input operations to an operation screen and an operation unit in the portable terminal device 6 are performed. Thereby, it is possible to write information to the field device 1.
In Method 2, since the portable terminal device 6 is directly connected to the field device 1, an operation in the field of a plant is necessary. In addition, it is difficult to access the connection terminal device 5 from the portable terminal device 6. As such, data input or data update to the device management database stored in the connection terminal device 5 needs to be performed through an operation on the connection terminal device 5, differently from the setting operation using the portable terminal device 6.
For this reason, both an operation by an operator in the field of a plant and an operation by another operator in a control room or an instrument panel room, in which the connection terminal device 5 is installed, are necessary. As such, it is difficult for the operators to cooperate.
US 2005 164684 A1 discloses a handheld communicator which wirelessly interfaces or communicates with individual devices in a process control system, such as field devices, controllers, etc., to wirelessly perform monitoring, maintenance, configuration and control activities with respect to those devices. The wireless handheld communicator includes a housing adapted for handheld operation, a processing unit disposed within the housing, a computer readable memory disposed within the housing and coupled to the processing unit and a display, a keypad and a radio frequency transceiver. The handheld communicator may be adapted to communicate with a host system to receive information needed to communicate with various field devices in the process plant and may then be used to wirelessly communicate with each of the various field devices directly while in close proximity to the field devices to perform monitoring and configuration activities with respect to the field devices. Thereafter, information obtained from the field devices may be wirelessly communicated to the host system or to a repository, such as a data historian or a configuration database.
US 2003 023 795 A1 discloses a multi-protocol smart field device which uses a Fieldbus communication protocol to communicate process control information and uses a HART communication protocol to enable local configuration of the field device via a hand-held HART communicator. The multi-protocol smart field device includes a first communications interface communicatively coupled to a digital data bus that is adapted to process HART communications which are received from and which are sent to a HART hand-held communicator. The multi-protocol smart field device further includes a second communications interface communicatively coupled to the digital data bus that is adapted to process Fieldbus communications.; Additionally, the multi-protocol smart field device includes a first filter coupled between the first communications interface and the digital data bus that substantially attenuates signals having frequencies associated with Fieldbus communications and a second filter coupled between the second communications interface and the digital data bus that substantially attenuates signals having frequencies associated with HART communications.

SUMMARY

The present invention provides a setting method of a field device and a setting system of a field device that reduce the burden of performing a setting process on the field device. According to the present invention the above object is achieved by means of a setting system according to claim 1 and by a method according to claim 6. The dependent claims are directed to different advantageous aspects of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The above features and advantages of the present invention will be more apparent from the following description of certain preferred embodiments taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a block diagram illustrating a configuration example of a field control system that includes a setting system of a field device to which a setting method of a field device is applied in accordance with a first preferred embodiment of the present invention;
FIG. 2 is a view illustrating a connection state between the field device and a connection terminal device in accordance with the first preferred embodiment of the present invention;
FIG. 3 is a flow chart illustrating the setting method (Method 3) of the field device in accordance with the first preferred embodiment of the present invention; and
FIG. 4 is a view illustrating a configuration example of a field control system in accordance with the related art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention will be now described herein with reference to illustrative preferred embodiments. Those skilled in the art will recognize that many alternative preferred embodiments can be accomplished using the teaching of the present invention and that the present invention is not limited to the preferred embodiments illustrated herein for explanatory purposes.
A first preferred embodiment of the present invention will be described. FIG 1 is a block diagram illustrating a configuration example of a field control system that includes a setting system of a field device to which a setting method of a field device is applied in accordance with the first preferred embodiment of the present invention. FIG. 1 illustrates only a connection part associated with the field device to be subjected to the setting process, but a plurality of field devices may be connected to the field control system.
As illustrated in FIG. 1, the field control system includes a group of field devices having a field device 1, a multiplexer 2 connected to an upper level of the field device 1, a field controller 3 connected to an upper level of the multiplexer 2, and a manipulation monitoring device 4 and an connection terminal device 5 which are connected to an upper level of the field controller 3.
In the preferred embodiment of the present invention, the field control system further includes a portable terminal device 6 that is connected to the field device 1, and a communication line 7 formed between the portable terminal device 6 and the connection terminal device 5. The connection terminal device 5 includes a receiving unit 51 that receives an input operation of information; a first setting unit 52 that performs setting for the field device 1 by transmitting information necessary for the setting from the connection terminal device 5 to the field device 1 through the communication line 7 in response to the input operation received by the receiving unit 51; and a second setting unit 53 that performs setting for the connection terminal device 5 that is necessary with the setting for each of the field device 1 in response to the input operation received by the receiving unit 51.
The manipulation monitoring device 4 performs the operation and monitoring related to field control of the field device 1 by using communication through a first communication path that is via the multiplexer 2 and the field controller 3.
The connection terminal device 5 performs an operation for setting various parameters such as device information and information necessary for communication for the field device 1 through the first communication path that is via the multiplexer 2 and the field controller 3. The connection terminal device 5 stores a device management database for which data input and data update are needed based on setting for the field device 1. If write and change of parameters are performed on the field device 1, then update of the device management database is needed as a setting for the connection terminal device 5.
Next, an operation procedure when the setting process for the field device 1 is performed will be described. Three methods will be described below as examples of an operation method. The present invention is characterized in Method 3.

(Method 1)

The connection terminal device 5, which is a host, performs setting for the field device 1 by performing communication with the field device 1 through the first communication path via the field controller 3 and the multiplexer 2.
In Method 1, the setting operation is performed by using the connection terminal device 5. Thereby, the connection terminal device 5 performs setting for the field device 1, and data input or data update to the device management database stored in the connection terminal device 5 simultaneously in parallel.
In Method 1, the field control uses the first communication path between the field device 1 and the manipulation monitoring device. Thereby, the communication speed when performing setting for the field device 1 may be lowered, depending on the number of field devices, performance of the field controller 3 or the like, and thus the setting process may require a long time.
When setting for the field device 1 is performed, setting is necessary to specify the first communication path for access from the connection terminal device 5 to the field device 1. For example, it is necessary to specify connection ports of the field controller 3 and the multiplexer 2 so that the connection terminal device 5 specifies the first communication path to connect to the field device 1. As such, when the scale of the field control system is large, a complicated procedure is necessary.

(Method 2)

A portable terminal device 6 is used to perform setting for the field device 1. In Method 2, while the portable terminal device 6 is directly connected to the field device 1, input operations to an operation screen 61 and an operation unit 62 in the portable terminal device 6 are performed. Thereby, it is possible to write information to the field device 1.
In Method 2, since the portable terminal device 6 is directly connected to the field device 1, an operation in the field of a plant is necessary. In addition, it is difficult to access the connection terminal device 5 from the portable terminal device 6. As such, data input or data update to the device management database stored in the connection terminal device 5 needs to be performed through an operation on the connection terminal device 5, differently from the setting operation using the portable terminal device 6. For this reason, both an operation by an operator in the field of a plant and an operation by another operator in a control room or an instrument panel room, in which the connection terminal device 5 is installed, are necessary. As such, it is difficult for the operators to cooperate.

(Method 3)

In Method 3, the portable terminal device 6 is used as a relay device to perform setting for the field device 1 from the connection terminal device 5. In the first preferred embodiment of the present invention, an example using FDT/DTM standard advocated by FDTGroup is described as software for performing setting of the field device.
FIG. 2 is a view illustrating a connection state between the field device 1 and the connection terminal device 5 in accordance with the first preferred embodiment of the present invention.
As shown in FIGS. 1 and 2, the portable terminal device 6 is connected to the field device 1. Thereby, the field device 1 and the connection terminal device 5 are connected by using a second communication path through the portable terminal device 6 and a communication line 7. A communication interface is mounted on the portable terminal device 6. The communication interface is used to perform communication between the field device 1 and the connection terminal device 5.
In FIG. 2, a first area 81 indicates a software configuration in the connection terminal device 5. The first area 81 includes a User Interface (UI), a DeviceDTM, and a unit with a reference numeral "A." A Device Type Manager (DeviceDTM) is drive software of a field device provided based on Field Device Tool (FDT) technology. The unit with a reference numeral "A" is a virtual CommDTM. The unit with a reference numeral "A" is recognized as a CommDTM, and an operator can perform the setting operation on the field device 1 through a display screen in the connection terminal device 5. The CommDTM is drive software for supporting communication with the field device 1.
In FIG. 2, a second area 82 indicates a software configuration in the portable terminal device 6. The second area 82 includes a unit with a reference numeral "B," a CommDTM, and the field device 1 as a Device. The unit with a reference numeral "B" is a virtual DeviceDTM. The unit with a reference numeral "B" is recognized as a DeviceDTM, and performs the transfer of data on the CommDTM, calls a parameter from the field device 1 as a Device, and writes the parameter to the field device 1.
The portable terminal device 6 includes a DTM frame, the CommDTM, and the virtual DeviceDTM. The connection terminal device 5 functions as a terminal device on which the DTM frame, the DeviceDTM, and the virtual CommDTM operates.
A third area 83 indicates a software configuration in the communication line 7. The third area 83 includes the virtual CommDTM ("A") and the virtual DeviceDTM ("B"). In the third area, the virtual CommDTM ("A") and the virtual DeviceDTM ("B") perform the transfer of data by using the communication interface included in each of the connection terminal device 5 and the portable terminal device 6. The communication interface may be one of Ethernet communication, Bluetooth, a telephone line, a satellite communication device, and a PLC.
Using the above configuration, when the connection terminal device 5 receives the input operation, the connection terminal device 5 transmits a necessary parameter to the field device 1 through the second communication path via the terminal device 6 and the communication line 7. Thereby, the necessary parameter is written to the field device 1.
Also, when the connection terminal device 5 receives the input operation, the connection terminal device 5 performs a necessary data input or data update on the device management database stored in the connection terminal device 5.
FIG. 3 is a flow chart illustrating the setting method (Method 3) of the field device in accordance with the first preferred embodiment of the present invention.
In step S1, the portable terminal device 6 is connected to the field device 1. Thereby, in step S2, the field device 1 and the connection terminal device 5 are connected by using the second communication path. Then, in step S3, communication between the field device 1 and the connection terminal device 5 is performed by using the communication interface.
Then, in step S4, an operator performs setting operation on the field device 1 through a display screen in the connection terminal device 5. In step S5, the connection terminal device 5 receives input operation.
If the connection terminal device 5 receives the input operation, then, in step S6, the connection terminal device 5 transmits information to the field device 1 through the second communication path. Thereby, in step S7, the information is written to the field device 1.
In parallel, if the connection terminal device 5 receives the input operation, then, in step S8, the connection terminal device 5 performs data input or data update on device management database stored in the connection terminal device 5.
In this manner, according to Method 3, the field device 1 is connected to the connection terminal device 5, without using the first communication path (field control communication line) through the field controller 3 and the multiplexer 2. As such, the setting process is performed irrespective of situations of the first communication path (field control communication line). The first communication path (field control communication line) is not used while the setting process is performed on the field device. Thus, a negative effect of the setting process for the field device on field control communication can be avoided.
The setting process can be performed on the field device 1 by only the input operation for the connection terminal device 5, and in parallel the data input and the data update are performed on the device management database stored in the connection terminal device 5. Thereby, it is not necessary to coordinate the operation in the field of a plant with the operation in the control room or the instrument panel room.
In addition, a general-purpose terminal device can be used as the connection terminal device 5. Thereby, the connection terminal device 5 can easily support various communication interfaces. As for change of the communication interface, all you have to do is to replace software for the unit with a reference numeral "A" and the unit with a reference numeral "B" in the third area 83 in FIG. 2 with software corresponding to the communication interface to be used. A familiar OS and software can be used by using a general-purpose terminal device as the connection terminal device 5. Thereby, the setting process can be performed without requiring any knowledge of dedicated hardware or dedicated software. In addition, if a kind of supportable communication interface is increased and, for example, the satellite line or the like is available, then access from a remote place to the field device becomes enabled.
Since the amount of data and parameters in the field device to be subjected to the setting process are relatively small, the amount of communication while setting the field device can be suppressed. Accordingly, a low-speed line can be used as the second communication path for setting the field device through the portable terminal device 6 and the communication line 7.
By connecting the portable terminal device 6 to the field device 1, the second communication path for performing the setting process on the field device can temporarily be used as a line for field control communication. That is, the second communication path through the portable terminal device 6 and the communication line 7, together with the first communication path (field control communication line) through the field controller 3 and the multiplexer 2 can be used as the field control communication line. Thereby, a redundancy of field control communication can be achieved.
The second communication path through the portable terminal device 6 and the communication line 7 can be used to collect data while the field test is performed or the like. For example, process data, error information, a self diagnosing result or the like stored in the field device 1 can be collected to the side of the connection terminal device 5 through the second communication path that is via the portable terminal device 6 and the communication line 7.
As described above, according to the setting method of a field device and the setting system of a field device of the present invention, the terminal device performs setting for the field device by transmitting information necessary for setting the field device from the terminal device to the field device through the second communication path, and the terminal device performs setting for the terminal device itself necessary with the setting for the field device. Thereby the burden for the setting process can be reduced.
The present invention can be widely applied to the setting method of a field device, the setting system of a field device or the like that performs setting for each field device, to which a communication line used in control data communication is connected, through the terminal device.
As used herein, the following directional terms "forward, rearward, above, downward, right, left, vertical, horizontal, below, transverse, row and column" as well as any other similar directional terms refer to those directions of an apparatus equipped with the present invention. Accordingly, these terms, as utilized to describe the present invention should be interpreted relative to an apparatus equipped with the present invention.
The term "configured" is used to describe a component, unit or part of a device includes hardware and/or software that is constructed and/or programmed to carry out the desired function.
Moreover, terms that are expressed as "means-plus function" in the claims should include any structure that can be utilized to carry out the function of that part of the present invention.
The term "unit" is used to describe a component, unit or part of a hardware and/or software that is constructed and/or programmed to carry out the desired function. Typical examples of the hardware may include, but are not limited to, a device and a circuit.
While preferred embodiments of the present invention have been described and illustrated above, it should be understood that these are examples of the present invention and are not to be considered as limiting. Additions, omissions, substitutions, and other modifications can be made without departing from the scope of the present invention. Accordingly, the present invention is not to be considered as being limited by the foregoing description, and is only limited by the scope of the claims.

Claims

A setting system of field devices (1) comprising:
a first communication path connectable to each of the field devices (1);

a terminal device (5) configured to communicate with the field devices through the first communication path via a multiplexer (2) and a field controller (3);

a relay device (6) connectable to each of the field devices (1); and

a second communication path (7) formed between each of the field devices (1) and the terminal device (5) via the relay device (6), the second communication path (7) being different from the first communication path,

wherein the terminal device (5) comprises:
a receiving unit (51) configured to receive an input operation by an operator to perform setting operation on the field devices;

a first setting unit (52) configured to perform a first setting for each of the field devices (1) by transmitting information necessary for the first setting from the terminal device (5) to each of the field devices (1) through the second communication path (7) in response to the input operation received by the receiving unit (51); and

a second setting unit (53) configured to perform a second setting for the terminal device (5), the second setting being necessary with the first setting for each of the field devices (1) in response to the input operation received by the receiving unit (51); wherein

the relay device (6) is a setting terminal device configured to have a function of performing the first setting for each of the field devices (1) connectable to the relay device (6) by receiving the input operation in a state in which the relay device (6) is directly connected to each of the field devices (1);

the terminal device (5) is configured to store a device management database and to perform data input and data update on the device management database based on the first setting for each of the field devices (1), and

if write and change of parameters are performed on each of the field devices (1), then the terminal device (5) is configured to perform update of the device management database as the second setting for the terminal device (5);

the terminal device (5) is further configured to collect data stored in each of the field devices (1) while a field test is performed by using the second communication path (7) via the relay device (6).
The setting system of field devices (1) according to claim 1, wherein
the first setting for each of the field devices (1) is configured to set various parameters such as device information and information necessary for communication.
The setting system of field devices (1) according to claim 1, wherein
the terminal device (5) is configured to function as a terminal device (5) on which a DTM frame, a DeviceDTM, and a virtual CommDTM operates, and

the relay device (6) is configured to include the DTM frame, a CommDTM, and a virtual DeviceDTM.
The setting system of field devices (1) according to claim 3, wherein
the virtual CommDTM and the virtual DeviceDTM are configured to perform transfer of data by using a communication interface included in each of the terminal device (5) and the relay device (6).
The setting system of field devices (1) according to claim 4, wherein the communication interface is one of Ethernet communication, Bluetooth, a telephone line, a satellite communication device, and a PLC.
A setting method of field devices (1) that performs setting for each of the field devices (1) through a terminal device (5) configured to communicate with the field devices through a first communication path via a multiplexer (2) and a field controller (3), each of the field devices (1) being connected to the first communication path that is used in control data communication, the setting method comprising:
forming a second communication path (7) via a relay device (6) between each of the field devices (1) and the terminal device (5) by connecting the relay device (6) to each of the field devices (1), the second communication path (7) being different from the first communication path;

receiving an input operation by an operator to perform setting operation on the field devices by the terminal device (5);

performing, by the terminal device (5), a first setting for each of the field devices (1) by transmitting information necessary for the first setting from the terminal device (5) to each of the field devices (1) through the second communication path (7) in response to the input operation received by the terminal device (5); and

performing, by the terminal device (5), a second setting for the terminal device (5) that is necessary with the first setting for each of the field devices (1) in response to the input operation received by the terminal device (5); wherein

the relay device (6) is a setting terminal device having a function of performing the first setting for each of the field devices (1) connected to the relay device (6) by receiving the input operation in a state in which the relay device (6) is directly connected to each of the field devices (1),

the terminal device (5) stores a device management database for which data input and data update are needed based on the first setting for each of the field devices (1),

if write and change of parameters are performed on each of the field devices (1), then update of the device management database as the second setting for the terminal device (5) is performed by the terminal device (5) and collection of data stored in each of the field devices (1) is performed by the terminal device (5) while a field test is performed by using the second communication path (7) via the relay device (6).
The setting method of field devices (1) according to claim 6, further comprising:
performing the control data communication by using the second communication path (7).
The setting method of field devices (1) according to claim 6, wherein
the first setting for each of the field devices (1) sets various parameters such as device information and information necessary for communication.
The setting method of field devices (1) according to claim 6, wherein
the terminal device (5) functions as a terminal device (5) on which a DTM frame, a DeviceDTM, and a virtual CommDTM operates, and

the relay device (6) includes the DTM frame, a CommDTM, and a virtual DeviceDTM.
The setting method of field devices (1) according to claim 9, wherein the virtual CommDTM and the virtual DeviceDTM perform transfer of data by using a communication interface included in each of the terminal device (5) and the relay device (6).